Miura vs miura xx

I'm new to highly asymmetric, highly downturned shoes. The katana lace is my most aggressive shoe, and I am now wanting more specialized, and cambered. This brings me to the miura xx. I was able to try on a Miura, so i have a reference point of my size in that last. To those that have worn both: How did you size the xx compared to miura? how does the more dramatic downturn change the fit for you.